JPS6141867A - Ice heat-accumulation type base rock inside low-temperature storage warehouse - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention utilizes the space inside the bedrock, and the installation cost and running cost are low (+ ij). X!!, it is a gate to Sai.

``Conventional technology'' Conventionally, the space inside the rock was used as a low-temperature storage facility.11. The place is known for what it is. This in-rock storage has the advantage that the temperature and humidity of the space within the rock exhibit approximately constant values throughout the year, making it less susceptible to fluctuations in the outside temperature (m degrees Celsius), resulting in lower storage running costs.

``Problems to be solved by the invention'' When attempting to operate a rock-based cold storage facility as described above more efficiently and economically, it is possible to store cold heat by using a refrigerator operated by outside cold air in the winter or late-night electricity. It is conceivable to install an ice making pit in the space inside the bedrock. In this case, if ice is made by the usual method, low density, so-called white water containing air bubbles will be produced, and the desired cold storage heat effect will not be obtained, which is a problem.This invention was made in view of the above circumstances. In addition to using the space inside the rock as a storage area, the ice thermal storage method is used to improve storage efficiency and economical efficiency, and the ice thermal storage type low-temperature storage inside the rock can greatly improve the cold storage heat effect. The purpose is to provide storage space.

[Means for Solving the Problems] The ice thermal storage type in-rock low-gourd storage according to the present invention uses a space inside the bedrock as a storage place, and stores cold air in this space inside the bedrock by using cold air from the outside or making ice using an external refrigerator. An ice-making pit that generates heat is provided, and a compressor that blows compressed air into the water in the ice-making pit and a wind turbine that drives this compressor are provided near the rock space.

"Function" According to the above configuration, the temperature and humidity of the space inside the rock remains almost constant throughout the year, so the initial cost and running cost are low, and the compressed air is transferred to the water in the ice making pit using natural energy that does not require running cost. can be blown into the water, thereby constantly moving water,
It is possible to form dense ice with few bubbles, and as a result, it is possible to store cold heat with high efficiency.

Hereinafter, this invention will be explained in more detail with reference to Examples.

"Embodiment" The figure shows an embodiment of the present invention, and reference numeral 1 in the figure indicates a space within the rock mass which is used as a storage place. An ice-making pit 2 is provided inside the bedrock space 1, and ice is made by a refrigerator 3 provided outside the bedrock space 1. This refrigerator 3 is economical if it is operated late at night when electricity is cheap, and the water in the ice making pit 2 is turned into ice by passing the pipe through the ice making pit 2 and circulating it. is configured to do so. Further, a pipe 4 having a large number of blowing holes is inserted into the ice making pit 2, and the base end of this pipe 40 is connected to a compressor 5 installed on the ground.

A windmill 6 is installed near the compressor 5 on the ground at a location with good wind exposure, and the compressor 5 is driven by the windmill 6.

According to the above configuration, wind power, which is an inexpensive natural energy, is converted into mechanical energy by the wind turbine 6, and this energy can be used to drive the compressor 5 to blow air into the ice making pit 2.

As we all know, if you make ice with constantly moving water,
The result is clear, hard ice with a high density and few air bubbles.

Therefore, if air is constantly blown into the ice-making pit 2 and water is constantly moved as described above, the ice obtained in the ice-making pit 2 by the refrigerator 3 will be denser and harder, and the cold energy it will contain will increase accordingly. is high and difficult to dissolve. As a result, the efficiency of cold storage heat in the ice making pit 2 can be made high, and the melting speed of the obtained ice is also slow, so the time to maintain the inside of the refrigerator at a predetermined low temperature with one ice making is longer. Therefore, it is possible to reduce storage costs.

In the above embodiment, a case where ice is made using a refrigerator is shown, but the present invention can be similarly applied to a case where ice is made using outside cold air in winter. At this time, an outside cold air introduction hole for blowing outside cold air into the ice making pit may be formed in the space inside the rock. - Still, in the above embodiment, at the same time the compressor is driven by the driving force of the wind turbine,
It is desirable to use the surplus power to charge a spare battery. By charging the spare battery with surplus power in this way, this energy can be used to drive the compressor when there is no wind or be used effectively for lighting inside the warehouse, contributing to the efficient operation of the storage facility. I can do it.

"Effects" As explained above, the ice heat storage type in-rock low-temperature storage according to the present invention uses the space inside the bedrock as a storage place, and stores cold heat in this space inside the bedrock by using cold air from the outside or by making ice using a refrigerator installed outside. A compressor for blowing compressed air into the water in the ice-making pit and a windmill for driving the compressor are installed near the rock space.

Therefore, according to the present invention, the following effects can be obtained.

In other words, since the temperature and humidity of the space inside the rock remains almost constant throughout the year, initial costs and running costs are reduced, and compressed air can be blown into the water in the ice making pit using natural energy with no running costs. This allows the water to constantly move, forming dense ice with few air bubbles, and as a result, it is possible to store cold heat with high efficiency.

[Brief explanation of the drawing]

The figure is a block diagram of an example of an ice thermal storage type in-rock low temperature storage according to the present invention. l... Space inside the bedrock, 2... Ice making pit, 3... Freezer, 4... Piping, 5... Compressor, 6...
・Windmill.

Claims (1)

[Claims] The space inside the bedrock is used as a storage area, and an ice-making pit is installed in this bedrock space to store cold heat by making ice using outside cold air or an external refrigerator. An ice thermal storage type in-rock low-temperature storage facility, characterized in that a wind turbine for driving a compressor is provided near the space in the rock.